How do antibodies of the different classes IgM, IgG, IgA, IgD, and IgE differ from each other ?

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#Question id: 29033

#Unit 11. Evolution and Behavior

a one type of phenotypic character present in animals which differ between the sexes but do not play a direct role in reproduction, this trait is called as ?

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#Question id: 1468

#Unit 4. Cell Communication and Cell Signaling

Why are BRCA1 and BRCA2 considered to be tumor-suppressor genes?

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#Question id: 12473

#Unit 10. Ecological Principles

You are observing a population of lizards when you notice that the number of adults has increased and is higher than previously observed. One explanation for such an observation would include

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#Question id: 31219

#Unit 4. Cell Communication and Cell Signaling

The intrinsic apoptosis pathway is mediated by an activated initiator caspase:

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#Question id: 1230

#Unit 4. Cell Communication and Cell Signaling

Which of the following events occur(s) following the binding of a ligand to a G protein–coupled receptor that triggers release of Ca2+?

a. activation of protein kinase A by IP3

b. phospholipase cleavage of PIP2 to IP3 and DAG

c. release of DAG into the cytosol

d. IP3-mediated opening of Ca2+ channels in the ER membrane